In Reply to: Re: Thermostat--71c,75c, or 80c ? posted by ron on January 03, 2000 at 14:55:40:
: I purchased my e34 525ia with 137,000 mile and the oil had always been changed at the dealer with whatever oli the dealer uses and at the recommended intervals (worked out to an average of 7200 miles between oil changes) a bit too long for me. I drove the car home and switched to the Mobil 1 synthetic filter and Tri Synthetic 15W50. The car now has 163,000 miles and does not need topping between oil services and does not leak (at all). I have performed this with 3 BMW's, 5 Volvo's, and a GMC Safari Van. No leaks on any of them.
Mobil On !